P0756

DTC P0756 SHIFT SOLENOID "A" PERFORMANCE (SHIFT SOLENOID VALVE S1)

CIRCUIT DESCRIPTION

DTC Detection Condition:

The ECM uses signals from the vehicle speed sensor and O/D direct clutch speed sensor to detect the actual gear position (1st, 2nd, 3rd, 4th or 5th gear). The ECM then compares the actual gear with the shift schedule in the ECM memory to detect mechanical trouble of the shift solenoid valves, valve body and automatic transmission (clutch, brake or gear, etc.).

HINT:
- Start the inspection from step 1 when DTC P0751 and P0761 is output.
- Start the inspection from step 2 when DTC P0756 is output.

MONITOR DESCRIPTION

Monitor Strategy:

DTC Detection Condition:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

The ECM commands gear shifts by turning the shift solenoid valves ON/OFF. According to the input shaft revolution, intermediate (counter) shaft revolution and output shaft revolution, the ECM detects the actual gear position (1st, 2nd, 3rd, 4th and 5th gear position). When the gear position commanded by the ECM and actual gear position are not same, the ECM will illuminate the MIL and store the DTC.

Step 1 - 3:

INSPECTION PROCEDURE